Population By Race and Ethnicity in Contra Costa County, CA in 2019

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2019, the 1,152,883 population of Contra Costa County, California comprised of 299,812 people who identified as Hispanic (26.01%), and 853,071 people who identified as Non-Hispanic (74%).

Race: The White Alone population was the largest racial group in Contra Costa County, California with a population of 746,482 (64.75%); Asian Alone population was the second largest racial group with a population of 212,928 (18.47%); and Black or African American Alone was the third largest racial group with a population of 109,467 (9.49%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Contra Costa County, California in 2019, with a population of 490,126 (42.51%); the second largest ethnic group was White Alone - Hispanic with a population of 256,356 (22.24%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 205,472 (17.82%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in Contra Costa, California.

You can find similar information for other California counties, and for California.

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Hispanics and Non Hispanics in Contra Costa County, CA in 2019
Total Population:
Race in Contra Costa County, CA in 2019
Total Population:
Ethnicity in Contra Costa County, CA in 2019
Total Population:
Population By Race in Contra Costa , CA in 2019
Race Population Percentage
Black or African American Alone 109,467 9.49%
White Alone 746,482 64.75%
American Indian and Alaska Native Alone 12,201 1.06%
Asian Alone 212,928 18.47%
Native Hawaiian And Pacific Islander Alone 7,088 0.62%
Two Or More Races 64,717 5.61%
Population By Ethnicity in Contra Costa , CA in 2019
Ethnicity Population Percentage
Black or African American Alone - Hispanic 9,389 0.81%
White Alone - Hispanic 256,356 22.24%
American Indian and Alaska Native Alone - Hispanic 9,021 0.78%
Asian Alone - Hispanic 7,456 0.65%
Native Hawaiian And Pacific Islander Alone - Hispanic 1,611 0.14%
Two Or More Races - Hispanic 15,979 1.39%
Black or African American Alone - Non Hispanic 100,078 8.68%
White Alone - Non Hispanic 490,126 42.51%
American Indian and Alaska Native Alone - Non Hispanic 3,180 0.28%
Asian Alone - Non Hispanic 205,472 17.82%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 5,477 0.48%
Two Or More Races - Non Hispanic 48,738 4.23%